JPH04708Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a triangular rice ball in which a sheet-shaped food such as seaweed is sandwiched between an inner film and an outer film, and a packaging sheet thereof.

(Prior art and its problems) Conventionally, as shown in FIG. 7, a triangular packaging bag has a triangular packaging bag in which a sheet-shaped food 3 such as seaweed is housed between a triangular outer bag-shaped film 1 and a triangular inner bag-shaped film 2. Therefore, packaging of triangular rice balls is practiced.

Inner film 2 exposed from one end of outer film 1
Pull one end 23 and remove the inner film.
If the sheet-like food 3 directly covers the rice ball 4 and the outer film 1 is opened, it can be eaten as is.

In the case of the above-mentioned packaged rice ball, the inner film 2 is made of a material that easily slips on the cooked rice, and the rice ball is coated with edible oil to make the inner film 2 slip even better. In addition, when pulling out the inner film 2, the inner film 2 passes through the narrow part on the top side of the rice ball, so the resistance to pulling out the film is large, making it difficult to pull out the inner film 2. The tip sometimes broke off and the inner bag remained inside the package.

Furthermore, the triangular packaging bag requires that the outer film and inner film are separately formed into a triangular bag, the sheet food folded into a triangle is placed inside the bag-shaped outer film, and the bag-shaped inner film is further inserted. The cost of manufacturing bags increased.

In addition, in order to package rice balls in the triangular packaging bag mentioned above, it is necessary to inflate the opening of the bag and insert the rice balls, but since it is difficult to automate packaging, this work must be done manually. There is. This led to poor work efficiency, which also increased the manufacturing cost of the packaged rice balls.

There is also a packaged rice ball in which a triangular rice ball is wrapped in a rectangular packaging sheet containing a sheet of food between two layers of film, and when eaten, the wrapping is removed, the sheet of food is taken out from between the films, and the food is rolled into the rice ball by oneself. .

Automatic packaging devices for packaging rice balls in rectangular packaging sheets as described above have been put into practical use, including the device previously proposed by the applicant (Japanese Patent Publication No. 61-22937).
The manufacturing efficiency is high, and the packaging sheet can be manufactured at a low cost by simply placing seaweed on the outer film, covering it with the inner film, and heat-welding it at the necessary locations, and the manufacturing cost of the wrapped rice balls is lower than the above-mentioned triangular packaging bag. It can be significantly reduced compared to the one using .

However, when rice balls are packaged in a rectangular packaging sheet, you have to wrap the sheet food around the rice ball yourself after removing the packaging, so the triangular packaging bag allows you to wrap the sheet food around the rice ball by simply pulling the inner film. There is no convenience.

(Purpose of the present invention) The present invention is a packaging sheet and packaging that is capable of automatic packaging, and that allows a part of the inner film to be smoothly pulled out and a sheet food to be placed over the rice ball when eating the rice ball. This reveals the rice ball.

(Means for solving the problem) The rice ball packaging sheet of the present invention has an outer film 1
is provided with a separating means 14 capable of dividing the film into two parts at approximately the center in the longitudinal direction, and the inner film 2 consists of a central film piece 21 and a pair disposed on both sides of the central film piece 21 with their ends slightly overlapped. The end film pieces 22, 22 are joined to the outer film piece 1.

Furthermore, in the packaged rice ball of the present invention, one side edge of the triangular rice ball overlaps the separating means 14 of the outer film 1 via the inner film 2, and both side portions of the packaging sheet cover both sides of the rice ball. It covers a triangular surface.

(action and effect) First, an example of a rice ball packaging procedure will be explained.

As shown in FIG. 6a, a packaging sheet is placed horizontally with the inner film 2 facing down below the packaging turntable 5, which has a mold hole 51 slightly larger than the outline of the triangular rice ball 4. The rice balls 4 are arranged at one end and below the packaging sheet in accordance with the direction of the mold holes 51.

At this time, the rice ball is positioned so that one side edge of the rice ball corresponds to the separation means 14 of the outer film 1 of the packaging sheet.

Next, the rice ball 4 is pushed up and passed through the mold hole 51 of the turntable 5 together with the packaging sheet.
Fold it downward along lines 1, 42, and 42 (Figure 6b).

At this time, the top surface and three sides of the rice ball are wrapped at once by the folded pieces S ₂ , S ₃ , and S ₃ of the sheet.

At this point, the rice ball is moved horizontally to the bottom side of the triangular rice ball as shown by arrow P, and the folded piece S ₂ hanging down from the bottom is hung on the edge of the mold hole 51 and folded to the bottom side of the triangular rice ball.

At this time, the tips of the two triangular folded pieces S ₃ and S ₃ are caught on the edge of the mold hole 51 and folded outward (FIG. 6c).

Fold the rectangular folded piece _S2 upward along the two sides of the rice ball 4 (Figure 6d).

Fold the tabs S ₅ and S ₅ of the sheet that protrude above the top surface of the rice ball 4 over the rice ball, and heat-seal the overlapping portions S ₆ or attach a sealing piece (sixth
Figure e).

The rice balls are packaged according to the above steps.

The sheet food 3 has an inner film 2 and an outer film 1.
It is sandwiched between the rice balls, does not come into direct contact with the rice balls, and
It is also shielded from the outside air, which prevents it from getting damp.

When eating the rice ball, the outer film 1 is separated by the separating means 14 of the outer film 1, and one side edge of the wrapped rice ball is released.

The sheet-like food product exposed at the unsealed portion of the outer film 1 is cut in the width direction to expose the central film piece 21 of the inner film 2, and the central film piece is pulled out (FIG. 4b).

With this, the center film piece 2 of the rice ball 4
The sheet food directly covers the part covered by 1.

Next, insert your finger into the unsealed portion of the outer film 1, grasp the portion of the rice ball directly covered with the sheet food 3, and pull it out from the outer film.

Since the film pieces 22 at both ends of the inner film are joined to the outer film, they remain within the outer film, and the sheet-like food 3 is pulled out together with the rice ball and naturally covers the rice ball. (Figure 4d).

As described above, it is possible to release one side edge of the wrapped triangular rice ball and pull out only the central film piece 21 of the inner film 2 made up of three film pieces 21, 22, 22, unlike the conventional method. Compared to the case where the entire inner film 2 is pulled out from the narrow opening at the top of the wrapped triangular rice ball, the pulling resistance is small and the central film piece 21 can be easily pulled out.

Then, just by pulling out the rice ball from the unsealed part of the outer film 1, the sheet-shaped food 3 is covered with the rice ball, so it is easy to cover the rice ball with the sheet-shaped food 3 without any effort.

The rectangular packaging sheet of the present invention can be automatically wrapped using an automatic packaging machine in the same way as conventional packaging sheets, and it can also be wrapped by forming two inner and outer films into a triangular bag, like conventional triangular packaging bags. Compared to the method of sandwiching a triangularly folded sheet food therein, the manufacturing procedure of the packaging sheet is simpler, and the cost of the packaging sheet itself can be lowered.

(Example) The outer film 1 has a length of about 220 mm and a width of about 140 mm.

The long side of outer film 1 is approximately 140mm, and the short side is approximately 120mm.
The two transparent outer film pieces 11, 11 are overlapped with each other with a width of about 20 mm on their long sides, and spot heat welding 15 is applied to the weight part so that the film can be peeled off in a linear manner to form a separating means 14 for the outer film 1. are doing.

Although the outer film piece 1 of the above embodiment is durable against tensile force in the width direction of the outer film,
In response to tensile force in the longitudinal direction, it is made of a stretched synthetic resin film that is easy to tear, and the tear strength in the width direction of the outer film is 220 Kg/cm, and the tear strength in the longitudinal direction is 10 Kg/cm. JIS-P-8116).

A sheet-shaped food 3 such as a sheet-shaped seaweed whose four corners are cut diagonally is placed on an outer film 1, and the food is perforated in the width direction at the center.

An inner film 2 having the same size as the outer film 1 is placed over the sheet-like food 3, and the inner film 2 is made of a film that is easy to slip on cooked rice and has excellent moisture resistance. There is.

Inner film 2 has a long side of about 140mm and a short side of about 120mm.
Rectangular end film pieces 22, each having a long side of about 140 mm and a short piece of about 65 mm, are stacked on both ends of a rectangular center film piece 21 in the transverse direction to have a width of about 15 mm.

In the embodiment, the weight portions are simply overlapped and not joined together, but the weight portions may be removably spot-welded.

The outer peripheries of the film pieces 22, 22 at both ends of the inner film 2 are heat-welded 10 to the outer film 1 in a band shape, leaving a weighted portion with the center film piece 21.

Further, the central portion of the long side edge of the outer film 1 in the longitudinal direction and the central film piece 21 of the inner film 2 are thermally welded 12 in a short range.

Further, an outer film 1 is placed around the sheet food 3.
and the inner film 2 are thermally welded to form the thermally welded portion 13.
is trying to position the sheet food.

When a triangular rice ball is packaged using the above-mentioned packaging sheet as described above based on FIG. This part will cover both triangular sides of the rice ball.

When eating the rice ball, the rice ball is supported with the separating means 14 side of the outer film 1 of the packaged rice ball facing upward, as shown in FIG. 4a.

The spot heat welding 15 of the separating means 14 of the outer film 1 is peeled off, and the separating means 1 is removed as shown in FIG. 4b.
Release 4. At this time, if the unsealed end of the outer film 1 is strongly pulled, the outer film 1 can be torn off in the width direction, allowing a wide opening. A perforation 31 of the sheet-like food product 3 is located in the release portion, and the sheet-like food product 3 is separated from the perforation 31.

When the sheet-like food 3 is separated at the unsealed portion of the outer film 1, the center separation edge of the sheet-like food that was pressed by the joint rises outward, and the center film 21 of the inner film 2 is exposed. do. When the central film 21 is pulled out, the film 2
The sheet-like food 3 directly covers the part that was covered by the food 1.

Next, a finger is inserted through the unsealed portion of the outer film 1, and the rice ball is grabbed and taken out from the outer film.

The film pieces 22, 22 at both ends of the inner film 2 are as follows:
Since it is bonded to the outer film, the sheet food 3 remains within the outer film, is pulled out together with the rice ball, and naturally covers the rice ball. (Figure 4d).

Incidentally, the sheet-like food 3 can be prepared without forming the perforations 31 after the outer film 1 is opened by the separating means 14.
It is also possible to divide it into two at the center.

The sheet food may be cut in advance at the center before being sandwiched between the outer film 1 and the inner film 2.

The separating means 14 for the outer film 1 is formed by pasting a thin film strip coated with a highly adhesive adhesive to the center of a single rectangular film, and applying tension to pull the thin film strip. Then, it is also possible to separate the outer film into two by peeling off the overlapping portion of the thin strip film together with the thin strip film.

The packaging sheet of the present invention can be automatically packaged using an automatic packaging machine in the same way as conventional rectangular packaging sheets, and like conventional triangular packaging bags, the inner and outer films are formed into a triangular bag, and inside the Compared to the case of sandwiching triangularly folded sheet foods, the manufacturing procedure of the packaging sheet is simpler, and the cost of the packaging sheet itself can be lowered.

The present invention is not limited to the configuration of the above-described embodiments, and various modifications can be made within the scope of the claims for utility model registration.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the packaging sheet, Figure 2 is an exploded perspective view of the packaging sheet, Figure 3 is a sectional view of the packaging sheet, Figure 4 is an explanatory diagram of the procedure for peeling off the rice ball packaging, and Figure 5 is the outside. Figure 6 is an explanatory diagram of the rice ball packaging procedure, Figure 7 is a perspective view of the film with the film opened
The figure is a perspective view of a conventional example. 1... Outer film, 2... Inner film, 3...
Sheet food, 4... rice balls.

Claims (1)

[Scope of claim for utility model registration] In a rice ball packaging sheet in which a sheet-shaped food product is sandwiched between a rectangular outer film and an inner film,
The outer film 1 is provided with a separating means 14 approximately at the center in the longitudinal direction that connects the film 1 at all times but can separate the film 1 from time to time. A rice ball packaging sheet is formed of a pair of end film pieces 22, 22 arranged with their ends slightly overlapped, and the outer peripheral edge of the end film is joined to the outer film 1. The outer film 1 is formed by overlapping the ends of two rectangular outer film pieces 11, and the separating means 14 is formed by thermally welding the weight portions so that they can be peeled off. The rice ball packaging sheet described in item 1. In a wrapped triangular rice ball packaged with a rice ball packaging sheet in which a sheet food 3 is sandwiched between a rectangular outer film 1 and an inner film 2, the outer film 1 has the film 1 approximately at the center in the longitudinal direction.
A separating means 14 is provided which connects the two at all times but can separate them at any time. Piece 2
2, 22, and the end film piece 2
2 and 22 are joined to the outer film 1, one side edge of the triangular rice ball overlaps the separating means 14 of the outer film 1 via the inner film 2, and both sides of the packaging sheet cover both triangular surfaces of the rice ball. A wrapped rice ball.